Robewott,

CRD Fuel Pumps are a fair bit cheaper than the old style pumps to repair and purchase, as they are simply pressurizing the fuel rail, albeit with fairly high pressure. I have seen them go for $1,000 and less,

I am not the expert on these pumps as I have never needed to rebuilt any of mine, but I would think that the extra pressure from the inline lift pump may have contributed to the leaky seals.

Mic